Recent content by Stacyg

I am trying to do a pipe flow question but I am having trouble understanding how they have calculated the k values. Example question 1.1 attached & appendix A1 attached. We have to use appendix A1 to find the k values. I have tried using interpolation to get the k values from the example...

Hi. The question is: Draw the shear force and bending moment diagrams for the simply supported beam shown below. State the values of the greatest shear force and bending moment, and the bending moment at D. The diagram is attached as is my attempt at the answer. I hvae not stated the values of...

Hi. The question is attached as well as my attempt at the answer, which I'm pretty sure is at least partially wrong. I have'ne included my calculations at point B as I have uploaded the limit of 3 files but I got BC=18.30kN (compression) Any help would be great thanks.

Hi. The problem is attached. I'm not sure on how to do this. Any help would be great. Thanks.

A steel bar of rectangular cross section 120mm x 60mm is compressed along its longitudinal direction by a force of 1500kN. Do the cross sectional dimensions increase or decrease ? Calculate and write down the resulting dimensions for both sides for both sides of the cross section. Youngs modulus...

A load of 5kN is applied to the tensile member shown in the figure below and is carried at the joint by a single rivet of 20mm diameter. The angle of the joint is 60 degrees to the axis of the load (the axis of the rivet is at 30 degrees to the line of action of the load P). Calculate: (a) the...

I know how to answer the question, just not how to find the overflow rate at 80% BOD. The question is exactly what I have written so i have to find the overflow rate at 80% BOD. Thanks Stacy

Interpolation ? A treatment plant consists of a primary sedimentation tank followed by a trickling filter that removes 80% of the influent BOD. The flow is then directed to a constructed marsh system that has an influent target BOD concentration of 30 mg/l before being discharged to a small...

Hi. I've been given this to calculate the support reactions but I'm not sure how to handle the increasing udl. And how would this be shown on a Bending moment and shear force diagram?? Also with non increasing Udl's when calculating the reaction is it best to change the udl to one force...

A rectangular concrete-lined channel is 2m wide with Manning's n 0.012 and a bed slope of 0.0025 m/m. Obtain the depth of flow when the discharge is 9m^3/s. Q=V.A I have the discharge but how do I calculate the velocity without the area ?? Once I have the velocity I should be able to work it...

A trapezoidal channel with side batters 1:1 and Manning's n value of 0.025 has a bed slope of 0.0045 m/m. When the depth is equal to the bottom width the discharge is 7.5 m^3/s. Calculate the bottom width to the nearest 0.01m. Using mannings equation V= 1/n.R^2/3.S^1/2 S=0.0045 n=0.025...

Prove that the resultant force F on a plane surface of area A immersed vertically in a liquid of density (rho) is given by the equation: F=rho.g.A.z Where 'z' is the depth to the centroid of the plane area below the liquid surface level. I under stand how F is found using this equation...

A column AB is anchored to the ground by a pin-joint at A, and is held in a vertical position by various loads as shown. Determine: (i) Magnitude of force f1 (ii) Magnitude and direction of the reaction at A I know how to calculate F1 if it was on a horizontal or vertical. But I'm not sure...

So would the combined Ixx of both channels be 2 times the Ixxof 1 channel. And sorry, but I'm not sure on how to calculate s using the parallel axis theorem. i haven't been taught much about it just given a bunch of formulas. Thanks For any help.

The two steel channels shown are arranged to form a compound section in which Ixx=Iyy. Determine the value of the dimension 's' that will satisfy this condition. We have been working on radius of gyration, section modulus, second moment of area, the parallel axis theorem, polar second...